Climate and average weather in Betioky

In Betioky, the summers are sweltering, fairly dry, and mostly clear and the winters are warm and clear.

Best: late May to late August

Over the course of the year, the temperature in Betioky typically varies from 15°C to 34°C, and is rarely below 12°C or above 38°C. November is the hottest month of the year, while July is the coldest.

Based on the travel score, the best time of year to visit Betioky for warm-weather activities is from late May to late August.

Hottest
Nov
34°
Coldest
Jul
15°
Wettest
Jan
191 mm
Driest
Jul
3 mm
Rain / yr
557 mm
71 wet days
Daylight
10.5–13.5 h
shortest–longest
Elevation
257 m
23.7°S
Clearest
Jul
13% cloud

Betioky weather by month, at a glance

The whole year in one picture — sky, rain, humidity, temperature and travel score. Click any band to jump to its full chart.

Each stripe is one measure across the whole year, stacked so a single day reads top to bottom. The sky band runs overcast grey on top down to clear blue at the base — more blue means sunnier — followed by the rainfall curve, the humidity band, a temperature strip that tints each stretch of the year by how warm its average high is, and the travel-score line at the foot. Scan straight down any date to read that day across every measure at once; the score climbs highest around late May to late August.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

Daily average highs and lows in Betioky, from 1991–2020 of climate data. The shaded bands show the range most days fall in — 10th to 90th percentile.

Temperatures in Betioky stay fairly even through the year, without a distinct hot or cool season. The warmest month is November, with an average high of 34°C and low of 22°C; the coolest is July, with an average low of 15°C and high of 27°C.

Days typically run about 12°C warmer than nights, with the widest day–night swing (around 14°C) in September.

10°15°20°25°30°35°40°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan3323
Feb3323
Mar3323
Apr3221
May3018
Jun2816
Jul2715
Aug2916
Sep3217
Oct3320
Nov3422
Dec3423

How hot and cold Betioky really feels

Feels-like highFeels-like lowactual air temp

The felt-temperature range through the year — heat index on the day's high (summer humidity), wind chill on the night's low (winter wind). The dashed lines are the plain thermometer; the gap is how much hotter or colder it really feels.

On the hottest afternoons, once humidity is folded in, Betioky feels like about 36°C (around December 29). About 214 days a year carry some heat stress, peaking in December.

10°15°20°25°30°35°40°JanFebMarAprMayJunJulAugSepOctNovDec
Feels-like high (°C)Air high (°C)Feels-like low (°C)Air low (°C)
Jan36332323
Feb36332323
Mar35332323
Apr32322121
May30301818
Jun28281616
Jul27271515
Aug29291616
Sep32321717
Oct33332020
Nov35342122
Dec36342323

Average hourly temperature in Betioky

A compact picture of the whole year, hour by hour: each column is a day, each row an hour, and the color is the modeled average temperature. Darker overlays mark night, lighter ones the civil-twilight hours around sunrise and sunset.

Read left to right for the day of the year and top to bottom for the hour of the day; the color is the modeled temperature, cool blues through to hot reds on the same scale as the other charts. A vertical slice is a single day's swing — coolest just before dawn, warmest in the mid-afternoon — while a horizontal slice follows one hour across the seasons. The darker overlay marks night and the lighter one the twilight around sunrise and sunset. Colors run warmest on November afternoons, near 34°C, and coldest before dawn in July, near 15°C.

JanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AM

Betioky weather by month

Every month at a glance. Click a month for its detailed page.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan33° / 23°19117.413.32.9
Feb33° / 23°11413.512.83.1
Mar33° / 23°629.412.23.5
Apr32° / 21°224.211.54.7
May30° / 18°51.410.96.7
Jun28° / 16°30.910.68.5
Jul27° / 15°30.610.78.8
Aug29° / 16°30.611.27.5
Sep32° / 17°40.811.95.7
Oct33° / 20°152.912.64.1
Nov34° / 22°356.213.13.3
Dec34° / 23°10012.713.43.0

Chance of rain

How likely it is to rain on a typical day, and how that shifts across the wetter and drier seasons.

Betioky gets about 557 mm of precipitation a year. On a typical day the chance of rain is some rain, but that rises and falls sharply with the seasons.

The wetter season lasts 4.6 months, from around Nov 15 to Apr 3, peaking in January at about 59% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Aug 2.

January is the wettest month by volume, with 191 mm over about 17 wet days; July is the driest, with 3 mm.

0%10%20%30%40%50%60%70%JanFebMarAprMayJunJulAugSepOctNovDecwetterdrierwettermostly drysome rainoften wetvery wetJan 18 · 59%Aug 2 · 2%
Rain on a day (%)Rain days
Jan5517
Feb4814
Mar319
Apr134
May51
Jun31
Jul21
Aug21
Sep31
Oct93
Nov216
Dec4113

Monthly rainfall

Over a full year, Betioky collects about 557 mm of rain across 71 wet days — roughly 46 mm in an average month.

It doesn’t fall evenly. January is the wettest month with 191 mm, while July is the driest at just 3 mm. The three wettest months alone bring about 73% of the year’s total.

050100150200JanFebMarAprMayJunJulAugSepOctNovDec1911146222533341535100
Rainfall (mm)Rain days
Jan19117
Feb11414
Mar629
Apr224
May51
Jun31
Jul31
Aug31
Sep41
Oct153
Nov356
Dec10013

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

How often the daytime sky is clear, partly cloudy or overcast.

In Betioky, the average share of the sky covered by clouds shows significant seasonal variation over the course of the year.

The clearer part of the year begins around April 16 and lasts for 6.8 months, ending around November 8. The clearest month is July, when the sky is clear, mostly clear, or partly cloudy 98% of the time on average.

The cloudier part of the year begins around November 9 and lasts for 5.2 months, ending around April 15. The cloudiest month is January, when it is overcast or mostly cloudy 43% of the time.

0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%JanFebMarAprMayJunJulAugSepOctNovDecJul 28 · 99%Jan 19 · 53%clearmostly clearpartly cloudymostly cloudyovercastcloudierclearercloudier
Clearer (%)Cloudier (%)
Jan5743
Feb6337
Mar7723
Apr8416
May9010
Jun964
Jul982
Aug973
Sep955
Oct8812
Nov8020
Dec7030

Daylight, sunrise and sunset

DaylightNight

Hours of daylight through the year, with sunrise and sunset times.

The gold band is daylight — sunrise runs along its lower edge, sunset along the upper — so it widens toward summer and pinches toward winter, with night the dark area above and below. The longest day, around December 15, brings about 13 h 30 min of light; the shortest, around June 15, only 10 h 30 min — a swing of roughly 3 hours.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan13.35:326:51
Feb12.85:526:42
Mar12.26:076:17
Apr11.56:195:46
May10.96:335:24
Jun10.66:465:19
Jul10.76:485:28
Aug11.26:315:42
Sep11.96:015:53
Oct12.65:316:04
Nov13.15:136:23
Dec13.45:156:42

Sunny days

How many genuinely sunny days each month brings — days the sky stays clear or mostly clear — banded into plain-language zones.

Betioky averages about 21 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 10 and 28 days.

The sunnier stretch runs 6.9 months, from around Apr 15 to Nov 9. The sunniest month is July, with roughly 28 sunny days (brilliant).

The greyest month is January, down near 11 sunny days — about 62% fewer than the July peak.

05101520253035JanFebMarAprMayJunJulAugSepOctNovDecgreyersunniergreyergloomymixedbrightbrilliantJul 2228 daysJan 1710 days
Sunny daysSky
Jan11Mixed
Feb12Mixed
Mar17Bright
Apr21Bright
May25Brilliant
Jun27Brilliant
Jul29Brilliant
Aug28Brilliant
Sep26Brilliant
Oct24Brilliant
Nov19Bright
Dec13Mixed

Humidity comfort

DryComfortableHumidMuggyOppressiveMiserable

Share of days at each humidity comfort level, based on the dew point — the measure that tracks how muggy it actually feels.

Humidity comfort is graded by the dew point — the temperature at which the air would be fully saturated — because it tracks how muggy it actually feels far better than relative humidity does. A low dew point feels dry and crisp; a high one feels sticky and oppressive no matter the reading on a humidity gauge.

In Betioky, how humid it feels changes dramatically over the year.

The more humid part of the year lasts 5.9 months, from around October 31 to April 27. The muggiest month is February, when the air feels humid, muggy or worse about 97% of the time.

The most comfortable stretch runs from around April 28 to October 30, and July is the most comfortable month — the air is dry or comfortable 99% of the time.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecJul 14 · 99%Feb 4 · 2%oppressivemuggyhumidcomfortabledryhumidcomfortablehumid
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
Jan03143547
Feb03163744
Mar17244324
Apr82639243
May32422430
Jun6827500
Jul8316100
Aug8217100
Sep6727500
Oct28392840
Nov92641222
Dec19254123

Wind

Average wind speed through the year, banded into plain-language speed zones so a number reads as 'breezy' or 'calm' without knowing the scale.

This is the average sustained wind speed at the standard 10 metres above open ground — the steady flow a weather station reports, not the sharper gusts that come and go, which can run half again as fast. It's the number that says whether a place is generally breezy or calm.

Wind in Betioky is steady company: average speeds sit near 11 km/hcalm — in every month of the year, with no meaningful windy or calm season.

051015JanFebMarAprMayJunJulAugSepOctNovDeccalmlight breezeSep 19 · 12 km/hJan 16 · 10 km/h
Wind speed (km/h)Feels
Jan10calm
Feb10calm
Mar10calm
Apr11calm
May11calm
Jun11calm
Jul11calm
Aug11calm
Sep12calm
Oct12calm
Nov11calm
Dec10calm

Hazard calendar for Betioky

In seasonPeak

When the seasonal hazards worth planning around — the rainy season, tropical-cyclone risk and dust haze — are active through the year.

Betioky's monsoon runs December–February, when most of the year's rain falls.

Monsoon
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Best time to visit Betioky

TravelBeach/poolTemperatureCloudsPrecipitation

To characterize how pleasant the weather is in Betioky throughout the year, we compute two travel scores — one for general sightseeing, one for beach and pool weather.

Around mid August, Betioky is still near the tail of its best-weather window — great conditions with the peak-season crowds already thinning.

Inferred from the travel-score curve; month-by-month visitor numbers are a planned addition.

The travel score favors clear, rainless days with daytime highs between 18°C and 28°C. Based on this score, the best time of year to visit Betioky for general outdoor tourist activities is from late May to late August, with a peak score in the last week of June.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timetravel scoretemperaturecloudsprecipitationJun 28 · 8.8

The travel score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

Travel score (0–10)Rating
Jan2.9poor
Feb3.1poor
Mar3.5fair
Apr4.8fair
May6.7good
Jun8.5ideal
Jul8.8ideal
Aug7.5good
Sep5.7good
Oct4.1fair
Nov3.3poor
Dec3.0poor

The beach/pool score favors clear, rainless days with daytime highs between 24°C and 34°C. Based on this score, the best time of year to visit Betioky for hot-weather activities is from mid April to late October, with a peak score in the third week of August.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebeach/pool scoretemperaturecloudsprecipitationAug 17 · 9.3

The beach/pool score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

What to pack for Betioky, by month

EssentialRecommendedOptional

Month by month, what's worth putting in the bag — from the temperature range, rain chance, sun and wind. Tap a month for a quick packing note.

For a warm-season trip around November (highs near 34°C), the essentials are light clothes and sun protection. In the cold season around July (highs near 27°C), pack light clothes.

Light clothing
Warm layer
Winter coat
Rain gear
Sun protection
Windbreaker

In November, Betioky sees daytime highs around 34°C and nights near 22°C. Pack light clothes and sun protection. About 6 days see rain.

UV index (midday) in Betioky by month

LowModerateHighVery highExtreme

Clear-sky midday UV index through the year, shaded by the WHO exposure levels — how much sun protection each month calls for.

Under clear skies, the midday UV index in Betioky peaks around January 24 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 20 at about 6 (high).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighVery highExtremeJan 24UV 14Jun 20UV 6
UV index (midday)Level
Jan14Extreme
Feb14Extreme
Mar13Extreme
Apr9Very high
May7High
Jun6High
Jul6High
Aug7Very high
Sep8Very high
Oct11Extreme
Nov12Extreme
Dec14Extreme

Average hourly UV index in Betioky

LowModerateHighVery highExtreme

Modeled clear-sky UV for every hour of every day — when in the day sun protection actually matters.

The whole year hour by hour: each column is a day, each row an hour, and the color is the modeled clear-sky UV index — the midday peak scaled down as the sun sits lower in the sky. Darker overlays mark night, lighter ones the civil-twilight hours around sunrise and sunset.

UV falls off far faster than brightness as the sun drops, so even in January the burn window is concentrated in the middle of the day: about 9 hours a day reach index 3 (protection recommended), and 7 hours reach 6 or more. Mornings and late afternoons stay comparatively gentle year round.

JanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AM
UV ≥ 3 (h/day)UV ≥ 6 (h/day)
Jan97
Feb8.57
Mar86
Apr74.5
May62.5
Jun50
Jul50
Aug63
Sep74
Oct85.5
Nov8.56.5
Dec97
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

Betioky is frost-free year round — even the coldest nights rarely reach freezing, so there is no start or end to the growing season.

0%25%50%75%100%JanFebMarAprMayJunJulAugSepOctNovDecfrost-free year round
Frost-free chance (%)Frost nights
Jan1000
Feb1000
Mar1000
Apr1000
May1000
Jun1000
Jul1000
Aug1000
Sep1000
Oct1000
Nov1000
Dec1000

Growing degree days

Degree days (base 10°C)Frost-free shaded

Growing degree days tally heat above 10°C: each day adds however many degrees its average temperature runs over that threshold, and cold days add nothing. Betioky banks about 5,667 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around December.

02,0004,0006,000JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan564
Feb507
Mar555
Apr493
May426
Jun348
Jul341
Aug382
Sep434
Oct514
Nov536
Dec567

Solar energy

Average daily shortwave solar energy reaching the ground, banded into brightness zones so the number means something at a glance.

Solar energy is how much sunlight actually reaches the ground each day, measured in kilowatt-hours per square metre (kWh/m²) — the combined effect of how long the sun is up, how high it climbs, and how much cloud gets in the way. It's the raw fuel a solar panel has to work with: for scale, 1 kWh/m² a day is dim and wintry, while 7+ is desert-bright.

Betioky receives about 5.9 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 4.0 and 7.4 kWh/m².

The brighter stretch of the year lasts 6.7 months, from around Sep 5 to Mar 28. The brightest month is November, averaging about 7.4 kWh/m² (intense).

The dimmest month is June, down near 4.1 kWh/m² — roughly 45% less than the November peak.

0123456789JanFebMarAprMayJunJulAugSepOctNovDecbrighterdimmerbrighterdimmoderatebrightintenseNov 97.4 kWhJun 224.0 kWh
Solar energy (kWh/m²)Level
Jan6.7Intense
Feb6.4Intense
Mar6.1Intense
Apr5.3Bright
May4.4Bright
Jun4.0Bright
Jul4.3Bright
Aug5.1Bright
Sep6.3Intense
Oct7.1Intense
Nov7.4Intense
Dec7.2Intense

Where is Betioky?

Betioky sits at 23.7°S, 44.4°E, 257 m above sea level, in Madagascar. The nearest listed city is Anakao, 75 km away.

ToliaraSakarahaBekilyAmpanihyItampoloAnkazoaboBeloha

Topography around Betioky

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Betioky.

Within 3 km, the terrain around Betioky has only modest variations in elevation — a maximum elevation change of 94 m around an average of 249 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 304 m; within 80 km, large variations in elevation — a maximum elevation change of 832 m.

The land around Betioky is covered by grassland (59%) and shrubs (23%) within 3 km, shrubs (44%) and grassland (31%) within 16 km, and shrubs (48%) and grassland (35%) within 80 km.

3 km
94 m
16 km
304 m
80 km
832 m
treesshrubsgrasslandcroplandartificial surfaceswater
Nearby: Anakao 75 km · Toliara 84 km · Sakaraha 93 km · Bekily 110 km · Ampanihy 114 km · Itampolo 116 km · Ankazoabo 160 km · Beloha 174 km

Madagascar travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / E
220 V · 50 Hz
Prices
≈ 31% of US
price level, 2025
GDP per capita
$599
2025
Happiness
4.2 / 10
World Happiness, 2025
Safe drinking water
22%
of population, 2024
Road deaths
29.2
per 100k/yr, 2019
Income group
Low
World Bank
English
Low
EF EPI 457
Religion
Church of Jesus Christ in Madagascar/Malagasy Lutheran Church/Anglican Church 34%Roman Catholic 32%none 22%other Christian 8%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Betioky (-23.7206°, 44.3807°, elevation 257 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).